EN ISO 172:1998

Plastics - Phenol-formaldehyde mouldings - Detection of free ammonia (ISO 172:1978)

Specification of a qualitative method of detecting the presence of free ammonia or other volatile bases in phenol-formaldehyde mouldings by the exposure of an indicator paper to the vapour from a moistened powdered sample. It may be used when the absence of free ammonia is a requirement.

Kunststoffe - Phenoplast-Formteile - Nachweis von freiem Ammoniak (ISO 172:1978)

Diese Internationale Norm Beschreibt ein qualitatives Verfahren zum Nachweis von freiem Ammoniak oder anderen flüchtigen Basen in Phenoplast-Formteilen durch Einbringen von Indikatorpapier in den Dampfraum über einer pulverisierten Probe. Sie kann angewendet werden, wenn Ammoniakfreiheit gewünscht ist.

Plastiques - Pièces moulées à base de phénoplastes - Recherche de la présence d'ammoniac libre (ISO 172:1978)

Polimerni materiali - Fenol-formaldehidni oblikovanci - Ugotavljanje prisotnosti prostega amoniaka (ISO 172:1978)

General Information

• Status: Published
• Publication Date: 21-Jul-1998
• Withdrawal Date: 30-Jan-1999
• ICS: 83.080.10 - Thermosetting materials
• Technical Committee: CEN/TC 249 - Plastics
• Drafting Committee: CEN/TC 249/SC 1/WG 13 - Thermosets
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 22-Jul-1998
• Completion Date: 22-Jul-1998
• Ref Project: SIST EN ISO 172:2000 - Plastics - Phenol-formaldehyde mouldings - Detection of free ammonia (ISO 172:1978)

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2000
Polimerni materiali - Fenol-formaldehidni oblikovanci - Ugotavljanje prisotnosti
prostega amoniaka (ISO 172:1978)
Plastics - Phenol-formaldehyde mouldings - Detection of free ammonia (ISO 172:1978)
Kunststoffe - Phenoplast-Formteile - Nachweis von freiem Ammoniak (ISO 172:1978)
Plastiques - Pieces moulées a base de phénoplastes - Recherche de la présence
d'ammoniac libre (ISO 172:1978)
Ta slovenski standard je istoveten z: EN ISO 172:1998
ICS:
83.080.10 Duromeri Thermosetting materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

IONAL STANDARD
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.ME)I(LIYHAPOAHAR OPt-AHM3AiJMR l-l0 CTAH~APTM3A~WWORGANISATION INTERNATIONALE DE NORMALISATION
Plastics - Phenol-formaldehyde mouldings - Detection of
free ammonia
Recherche de Ia prtisence d ’ammoniac libre
Plastiques - Pikes moukes 2 base de ph6noplastes -
First edition - 1978-08-15
Ref. No. ISO 172-1978 (E)
UDC 678.632 ’32 ’21 : 678.067 : 543.813
Descriptors : plastics, castings, phenoplasts, detection, ammonia (gas).
Price based on 1 page
FOREWQRD
ISO (the International Organization for Standardization) is a worldwide federation
of national Standards institutes (ISO member bodies). The work of developing
International Standards is carried out through ISO technical committees. Every
member body interested in a subject for which a technical committee Dias been set
up has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the technical committees are circulated
to the member bodies for approval before their acceptance as International
Standards by the ISO Council.
International Standard ISO 172 was developed by Technical Committee
ISO/TC 6 1, Plastics.
lt was submitted directly to the ISO Council, in accordance with clause 6.13.1
of the Directives for the technical work of ISO. lt cancels and replaces
ISO Recommendation R 172-1961, which had been approved by the member
bodies of the following countries :
Australia I
...